scholarly journals Test-retest reliability, internal consistency, construct validity and factor structure of a falls risk perception questionnaire in older adults with type 2 diabetes mellitus: a prospective cohort study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Janelle Gravesande ◽  
Julie Richardson ◽  
Lauren Griffith ◽  
Fran Scott
Keyword(s):  
Type 2 Diabetes ◽  
Older Adults ◽  
Construct Validity ◽  
Internal Consistency ◽  
Perceived Risk ◽  
Community Dwelling ◽  
Risk Of Falling ◽  
Retest Reliability ◽  
Test Retest Reliability

Abstract Background Older adults with type 2 diabetes (DM2) are at increased risk of falling due to complications including: diabetic peripheral neuropathy, diabetic retinopathy, autonomic neuropathy and diabetic foot ulcers. The purpose of this study was to determine the test-retest reliability, internal consistency, construct validity and to perform factor analysis of a new falls Risk Perception Questionnaire (RPQ) in older community-dwelling adults with DM2. Methods A prospective cohort of 30 community-dwelling older adults, ≥ 55 years, with DM2 was assembled. At baseline, perceived risk of falling, fear of falling and physical activity were measured. At time 2 (T2), at least 2 days later, perceived risk of falling was assessed again to determine the test-retest reliability of the RPQ. At time 3 (T3), approximately six weeks later, and time 4 (T4), at least 2 days after T3, perceived risk of falling was assessed by phone to determine the test-retest reliability of the RPQ when administered by phone. Results The RPQ demonstrated excellent test-retest reliability when delivered in person (ICC = 0.78, 95% Confidence Interval, CI: 0.59–0.89) and by phone (ICC = 0.82, 95% CI: 0.65–0.91), good internal consistency (α = 0.78) and adequate construct validity (r = 0.52, 95% CI: 0.20–0.74, p = 0.003) in older adults with DM2. Conclusion Given the good psychometric properties in this sample of persons with Diabetes, the RPQ has the potential to be used in clinical practice as a risk assessment and fall prevention tool. However, further testing needs to be done using a larger sample.

scholarly journals The Modified Gait Efficacy Scale: Establishing the Psychometric Properties in Older Adults

2012 ◽  
Vol 92 (2) ◽  
pp. 318-328 ◽  
Author(s):  
Alaina M. Newell ◽  
Jessie M. VanSwearingen ◽  
Elizabeth Hile ◽  
Jennifer S. Brach
Keyword(s):  
Older Adults ◽  
Correlation Coefficient ◽  
Internal Consistency ◽  
Intraclass Correlation ◽  
Community Dwelling ◽  
Self Report ◽  
Retest Reliability ◽  
And Performance ◽  
Test Retest Reliability ◽  
Community Dwelling Older Adults

BackgroundPerceived ability or confidence plays an important role in determining function and behavior. The modified Gait Efficacy Scale (mGES) is a 10-item self-report measure used to assess walking confidence under challenging everyday circumstances.ObjectiveThe purpose of this study was to determine the reliability, internal consistency, and validity of the mGES as a measure of gait in older adults.DesignThis was a cross-sectional study.MethodsParticipants were 102 community-dwelling older adults (mean [±SD] age=78.6±6.1 years) who were independent in ambulation with or without an assistive device. Participants were assessed using the mGES and measures of confidence and fear, measures of function and disability, and performance-based measures of mobility. In a subsample (n=26), the mGES was administered twice within a 1-month period to establish test-retest reliability through the intraclass correlation coefficient (ICC [2,1]). The standard error of measure (SEM) was determined from the ICC and standard deviation. The Cronbach α value was calculated to determine internal consistency. To establish the validity of the mGES, the Spearman rank order correlation coefficient was used to examine the association with measures of confidence, fear, gait, and physical function and disability.ResultsThe mGES demonstrated test-retest reliability within the 1-month period (ICC=.93, 95% confidence interval=.85, .97). The SEM of the mGES was 5.23. The mGES was internally consistent across the 10 items (Cronbach α=.94). The mGES was related to measures of confidence and fear (r=.54–.88), function and disability (Late-Life Function and Disability Instrument, r=.32–.88), and performance-based mobility (r=.38–.64).LimitationsThis study examined only community-dwelling older adults. The results, therefore, should not be generalized to other patient populations.ConclusionThe mGES is a reliable and valid measure of confidence in walking among community-dwelling older adults.

Psychometric Properties of the Thai Version of the 8-item Morisky Medication Adherence Scale in Patients with Type 2 Diabetes

2009 ◽  
Vol 43 (5) ◽  
pp. 950-957 ◽  
Author(s):  
Phantipa Sakthong ◽  
Rossamalin Chabunthom ◽  
Rungpetch Charoenvisuthiwongs
Keyword(s):  
Type 2 Diabetes ◽  
Medication Adherence ◽  
Psychometric Properties ◽  
Internal Consistency ◽  
Predictive Value ◽  
Retest Reliability ◽  
Adherence Scale ◽  
Test Retest Reliability ◽  
Morisky Scale

Background A self-reporting questionnaire is the most convenient and cheapest way to assess medication adherence. A new 8-item self-reported Morisky Medication Adherence Scale (MMAS) has been developed and has shown better psychometric properties than the original 4-item Morisky scale. Objective To examine the validity, including convergent known-groups and construct validity, and reliability, including internal consistency and test–retest reliability, of the MMAS in Thai patients with type 2 diabetes. Methods The data were derived from a cross-sectional study. In a convenience sample, 303 type 2 diabetic outpatients were interviewed at the General Police Hospital in Bangkok, Thailand, between January and June 2007. Face-to-face interviews included MMAS, medication adherence visual analog scale (MA-VAS), and sociodemographic data. Medical records were reviewed for clinical data such as hemoglobin A1c (A1C) levels. Results Internal consistency reliability was moderate (Cronbach's α = 0.61), whereas the test–retest reliability of the MMAS was excellent (intraclass correlation coefficient = 0.83; p < 0.001). Concerning convergent validity, the MMAS had a high correlation with the 3-item Morisky scale (r = 0.77; p < 0.01) and a medium correlation with the MA-VAS (r = 0.57; p < 0 01). Regarding known-groups validity, a significant association between MMAS and A1C levels was found (χ2 = 6.7; p < 0.05). The sensitivity, specificity, positive predictive value, and negative predictive value of the MMAS were 51%, 64%, 71%, and 43%, respectively. Our factor analysis showed that the MMAS had 3 dimensions including forgetting to take medications, stopping medications when feeling better or worse, and the complexity of the drug regimen. Conclusions The 8-item MMAS can be a tool to aid in assessing medication adherence in diabetes. The poor sensitivity can be improved by increasing the number of the response choices and the cut-off score of the scale and by using specific words in some items. A modified Thai version of the 8-item MMAS may be needed.

Psychometric Properties of the High-Need Community-Dwelling Older Adults Screening Scale

2021 ◽  
pp. 105477382110368
Author(s):  
Kuei-Min Chen ◽  
Meng-Chin Chen ◽  
Hui-Fen Hsu ◽  
Frank Belcastro ◽  
Wei-Yun Chang
Keyword(s):  
Older Adults ◽  
Factor Analysis ◽  
Internal Consistency ◽  
Goodness Of Fit ◽  
Discriminant Validity ◽  
Community Dwelling ◽  
Retest Reliability ◽  
Test Retest Reliability ◽  
Community Dwelling Older Adults ◽  
Screening Scale

This study aimed to verify the factorial structure, internal consistency, test-retest reliability, and discriminant validity of the High-need Community-dwelling Older Adults Screening Scale (HCOASS). A 20-item HCOASS covering five domains was used with a systematic random sample of 818 community-dwelling older adults. After the analyses, the Exploratory Factor Analysis suggested a removal of two items, resulting in 5 domains with 18 items, and the Confirmatory Factor Analysis yielded satisfactory results with Goodness of Fit Index of .98. The HCOASS demonstrated acceptable internal consistency (Kuder-Richardson Formula 20 α = .75) and excellent test-retest reliability (0.94; 95% CI [0.91, 0.97]). The area under the Receiver Operating Characteristic (ROC) curve was 0.90 (95% CI [0.84, 0.95]) and the optimal cut-off score was 4/5. The HCOASS is a valid and reliable screening tool. It has the potential for consistent and efficient administration to be used by non-healthcare professionals in the community.

scholarly journals Test-Retest Reliability and Minimal Detectable Change Scores for Fitness Assessment in Older Adults with Type 2 Diabetes

2013 ◽  
Vol 39 (5) ◽  
pp. 260-268 ◽  
Author(s):  
Rosa M. Alfonso-Rosa ◽  
Borja del Pozo-Cruz ◽  
Jesus del Pozo-Cruz ◽  
Borja Sañudo ◽  
Michael E. Rogers
Keyword(s):  
Type 2 Diabetes ◽  
Older Adults ◽  
Minimal Detectable Change ◽  
Detectable Change ◽  
Retest Reliability ◽  
Change Scores ◽  
Fitness Assessment ◽  
Test Retest Reliability

scholarly journals Reliability and validity of the Chinese version of the LMC Skills, Confidence & Preparedness Index (SCPI) in patients with type 2 diabetes

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Ximin Wang ◽  
Weibo Lyu ◽  
Ronnie Aronson ◽  
Aihua Li ◽  
Gendi Lu ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Internal Consistency ◽  
Cross Cultural ◽  
Chinese Version ◽  
Chinese Patients ◽  
Self Management ◽  
Convenience Sample ◽  
Retest Reliability ◽  
Test Retest Reliability

Abstract Background A variety of diabetes self-management instruments have been developed but few of them consist of the preparedness for diabetes self-management behavior. The novel psychometric evaluation tool “the LMC Skills, Confidence & Preparedness Index (SCPI)” measures three key aspects of a patient’s diabetes self-management: knowledge of the skill, confidence in being able to perform skill and preparedness to implement the skill. The objective of this study was to translate, adapt and validate the SCPI for use in Chinese adult patients with type 2 diabetes. Methods This study followed the guideline recommended by the American Academy of Orthopaedic Surgeons Evidence Based Medicine Committee (AAOS) to indigenize the scale. Forward and back translation, and cross-cultural language debugging were completed according to the recommended steps. A convenience sample of Chinese patients with type 2 diabetes (n = 375) were recruited from a university-affiliated hospital in Shanghai. The validity (criterion, discriminant validity, and construct validity), reliability (internal consistency and test–retest reliability) and the interpretability of the instrument were examined. The content validity was calculated by experts’ evaluation. Results The Chinese version of SCPI (C-SCPI) has good internal consistency with a Cronbach’s alpha of 0.92. The ceiling effects of the preparedness subscales is 21%. The criterion validity of three dimensions of C-SCPI was established with significantly moderate correlations between the DKT, DES-SF and SDSCA (p < 0.05). The S-CVI of the whole scale was 0.83. Except for entry 21, the I-CVI values of all entries were greater than 0.78. The C-SCPI has also shown good discriminative validity with statistically significant differences between the patients with good and poor glycemic control. Confirmatory factor analysis showed that modified results indicate that the fitting degree of the model is good, χ2/df = 2.775, RMSEA = 0.069, CFI = 0.903, GFI = 0.873, TLI = 0.889, IFI = 0.904. The test–retest reliability coefficient was 0.61 (p < 0.01). Conclusion We established a Chinese version of SCPI through translation and cross-cultural adaptation. The C-SCPI is reliable and valid for assessment of the level of self-management in Chinese patients with type 2 diabetes.

scholarly journals Cross-cultural adaptation, reliability and validity of the Fremantle Knee Awareness Questionnaire in Italian subjects with painful knee osteoarthritis

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Marco Monticone ◽  
Cristiano Sconza ◽  
Igor Portoghese ◽  
Tomohiko Nishigami ◽  
Benedict M. Wand ◽  
...  
Keyword(s):  
Construct Validity ◽  
Knee Osteoarthritis ◽  
Pain Intensity ◽  
Internal Consistency ◽  
Structural Validity ◽  
Retest Reliability ◽  
Knee Oa ◽  
Pain Catastrophising ◽  
Test Retest Reliability ◽  
Painful Knee

Abstract Background and aim Growing attention is being given to utilising physical function measures to better understand and manage knee osteoarthritis (OA). The Fremantle Knee Awareness Questionnaire (FreKAQ), a self-reported measure of body-perception specific to the knee, has never been validated in Italian patients. The aims of this study were to culturally adapt and validate the Italian version of the FreKAQ (FreKAQ-I), to allow for its use with Italian-speaking patients with painful knee OA. Methods The FreKAQ-I was developed by means of forward–backward translation, a final review by an expert committee and a test of the pre-final version to evaluate its comprehensibility. The psychometric testing included: internal structural validity by Rasch analysis; construct validity by assessing hypotheses of FreKAQ correlations with the knee injury and osteoarthritis outcome score (KOOS), a pain intensity numerical rating scale (PI-NRS), the pain catastrophising scale (PCS), and the Hospital anxiety and depression score (HADS) (Pearson’s correlations); known-group validity by evaluating the ability of FreKAQ scores to discriminate between two groups of participants with different clinical profiles (Mann–Whitney U test); reliability by internal consistency (Cronbach’s alpha) and test–retest reliability (intraclass correlation coefficient, ICC2.1); and measurement error by calculating the minimum detectable change (MDC). Results It took one month to develop a consensus-based version of the FreKAQ-I. The questionnaire was administered to 102 subjects with painful knee OA and was well accepted. Internal structural validity confirmed the substantial unidimensionality of the FreKAQ-I: variance explained was 53.3%, the unexplained variance in the first contrast showed an eigenvalue of 1.8, and no local dependence was detected. Construct validity was good as all of the hypotheses were met; correlations: KOOS (rho = 0.38–0.51), PI-NRS (rho = 0.35–0.37), PCS (rho = 0.47) and HADS (Anxiety rho = 0.36; Depression rho = 0.43). Regarding known-groups validity, FreKAQ scores were significantly different between groups of participants demonstrating high and low levels of pain intensity, pain catastrophising, anxiety, depression and the four KOOS subscales (p ≤ 0.004). Internal consistency was acceptable (α = 0.74) and test–retest reliability was excellent (ICC = 0.92, CI 0.87–0.94). The MDC95 was 5.22 scale points. Conclusion The FreKAQ-I is unidimensional, reliable and valid in Italian patients with painful knee OA. Its use is recommended for clinical and research purposes.

scholarly journals Predictors of frailty among Chinese community-dwelling older adults with type 2 diabetes: a cross-sectional survey

BMJ Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. e041578
Author(s):  
Linglin Kong ◽  
Huimin Zhao ◽  
Junyao Fan ◽  
Quan Wang ◽  
Jie Li ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Older Adults ◽  
Depressive Symptoms ◽  
Community Health ◽  
Community Dwelling ◽  
Central China ◽  
Chinese Community ◽  
Cross Sectional ◽  
Community Dwelling Older Adults

ObjectivesTo assess the prevalence of frailty and identify predictors of frailty among Chinese community-dwelling older adults with type 2 diabetes.DesignA cross-sectional design.SettingTwo community health centres in central China.Participants291 community-dwelling older adults aged ≥65 years with type 2 diabetes.Main outcome measuresData were collected via face-to-face interviews, anthropometric measurements, laboratory tests and community health files. The main outcome measure was frailty, as assessed by the frailty phenotype criteria. The multivariate logistic regression model was used to identify the predictors of frailty.ResultsThe prevalence of prefrailty and frailty were 51.5% and 19.2%, respectively. The significant predictors of frailty included alcohol drinking (ex-drinker) (OR 4.461, 95% CI 1.079 to 18.438), glycated haemoglobin (OR 1.434, 95% CI 1.045 to 1.968), nutritional status (malnutrition risk/malnutrition) (OR 8.062, 95% CI 2.470 to 26.317), depressive symptoms (OR 1.438, 95% CI 1.166 to 1.773) and exercise behaviour (OR 0.796, 95% CI 0.716 to 0.884).ConclusionsA high prevalence of frailty was found among older adults with type 2 diabetes in the Chinese community. Frailty identification and multifaceted interventions should be developed for this population, taking into consideration proper glycaemic control, nutritional instruction, depressive symptoms improvement and enhancement of self-care behaviours.

Validation of the Beliefs of Physical Activity among Clergy (B-PAC) Instrument

2017 ◽  
Vol 32 (2) ◽  
Author(s):  
Shannon Gwin ◽  
Paul Branscum ◽  
E. Laurette Taylor
Keyword(s):  
Physical Activity ◽  
Factor Analysis ◽  
Construct Validity ◽  
Psychometric Properties ◽  
Internal Consistency ◽  
Internal Consistency Reliability ◽  
Retest Reliability ◽  
Reliable Instrument ◽  
The Stability ◽  
Test Retest Reliability

The purpose of this study was to create a valid and reliable instrument to evaluate theory-basedbeliefs towards physical activity among clergy members. Data were collected from 174 clergy that par-ticipated in a 15-item online and paper-based survey. Psychometric properties of the instrument includedconfirmatory factor analysis (construct validity), and cronbach’s alpha (internal consistency reliability).In addition, the stability (test-retest reliability) of each subscale was evaluated with a sub-sample of 30participants. Results show the instrument was both valid and reliable, and will be useful in future studiestargeting this population. Future implications are discussed.

Psychometric properties of patient reported outcome (PRO) instruments in patients with small cell lung cancer (SCLC) in RESILIENT part 1.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e24027-e24027
Author(s):  
Jaba Kokhreidze ◽  
Veleka Allen ◽  
Cristina Ivanescu ◽  
Xiaopan Valerie Yao ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Construct Validity ◽  
Psychometric Properties ◽  
Internal Consistency ◽  
Life Questionnaire ◽  
Retest Reliability ◽  
Patient Reported ◽  
Eortc Qlq ◽  
Test Retest Reliability ◽  
Pro Instruments

e24027 Background: The ongoing two-part phase 2/3 RESILIENT study (NCT03088813) is investigating the efficacy and safety of liposomal irinotecan monotherapy in patients with SCLC who have progressed on or after first line platinum-based chemotherapy. This exploratory analysis from RESILIENT part 1 was conducted to confirm the psychometric properties of established PRO instruments that had not previously been validated in patients with SCLC. Methods: Patients completed the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ) Core 30 (C30) and the EORTC QLQ Lung Cancer 13 (LC13) before treatment assignment (baseline), every 6 weeks thereafter, at treatment discontinuation and at the 30-day follow-up visit. Psychometric methods included descriptive statistics (items and scales), correlations (item-to-item and item-to-total), internal consistency (Cronbach’s α), test-retest reliability (intraclass correlation coefficient [ICC], two-way random effects model), construct validity and sensitivity to change. The analysis included patients who received at least one dose of study drug and completed at least one PRO assessment. Results: Thirty patients were enrolled in RESILIENT part 1 and included in the analysis. At baseline, 68% of patients reported ‘not severe’ or ‘mild’ symptoms. Floor effects (i.e. more than 25% of responses of ‘not at all’) were observed for several of the functioning/impact and symptom scales of the EORTC QLQ C30 and LC13. Moderate to strong correlations were found among most questionnaire items within their respective scales. Acceptable evidence for internal consistency and good test-retest reliability were observed. Selected results for the EORTC QLQ LC13, including dyspnea scales, are shown in the Table. The magnitude of correlations among PRO instruments supported evidence for convergent validity in this sample. Conclusions: In RESILIENT part 1, patients experienced low and tolerable symptoms at enrollment, limiting the potential for further improvement. Overall, these PRO instruments had acceptable psychometric properties (e.g. construct validity, reliability and ability to detect change) in this sample. However, these analyses should be repeated in a larger sample using data from RESILIENT part 2. Clinical trial information: NCT03088813. [Table: see text]

Test–Retest Reliability and Internal Consistency of the Activity Card Sort–Australia (18-64)

2016 ◽  
Vol 37 (1) ◽  
pp. 50-56 ◽  
Author(s):  
Louise Gustafsson ◽  
Inez Hui Min Hung ◽  
Jacki Liddle
Keyword(s):  
Internal Consistency ◽  
Descriptive Study ◽  
Community Dwelling ◽  
Lower Percentage ◽  
Card Sort ◽  
Retest Reliability ◽  
Activity Engagement ◽  
Maintenance Activities ◽  
Test Retest Reliability ◽  
Acceptable Internal Consistency

The Activity Card Sort (ACS) measures activity engagement levels. The Activity Card Sort–Australian version for adults aged 18 to 64 (ACS-Aus (18-64)) was recently developed, and psychometric properties have not yet been determined. This study was established to determine the test–retest reliability and internal consistency of the ACS-Aus (18-64) and describe activity engagement trends for healthy adults. Fifty-four adults aged 18 to 64 participated in this descriptive study. The ACS-Aus (18-64) demonstrated excellent test–retest reliability ( r = .92, p < .001) and acceptable internal consistency (α = .83). Adults aged 18 to 40 retained a lower percentage of activities than adults aged 41 to 64 for personal care, daily life, home maintenance activities ( t = −2.22, p = .03), and recreation and relaxation activities ( t = −2.38, p = .02). The ACS-Aus (18-64) may be used to explore the activity engagement patterns of community-dwelling Australian adults aged 18 to 64. Further research will determine validity for clinical populations.

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